MSI

MSI B450APROMAX AMD Ryzen AM4 ATX Motherboard

Name: MSI B450APROMAX AMD Ryzen AM4 ATX Motherboard
Brand: MSI
SKU: B450APROMAX

Build Your Dream Ryzen System with MSI ProSeries The MSI B450-A Pro Max motherboard is designed for AMD Ryzen processors (1st, 2nd, and 3rd Gen) and offers a robust foundation for your gaming or professional build. With support for fast DDR4 memory, Turbo M.2 for NVMe SSDs, and multi-GPU configur...

$192.17*

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*Price sourced from Amazon.com. Last updated:Sep 12, 2026.Price and availability are subject to change — details.

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Overview

Build Your Dream Ryzen System with MSI ProSeries

The MSI B450-A Pro Max motherboard is designed for AMD Ryzen processors (1st, 2nd, and 3rd Gen) and offers a robust foundation for your gaming or professional build. With support for fast DDR4 memory, Turbo M.2 for NVMe SSDs, and multi-GPU configurations, this ATX motherboard provides the performance and features you need.

Detailed Specifications:

Processor Support: AMD Ryzen 1st, 2nd, and 3rd Gen
Memory Support: DDR4, up to 4133(OC) MHz
M.2: Turbo M.2 (PCI-E Gen3 x4)
Multi-GPU Support: 2-Way AMD Crossfire
Rear Ports: D-Sub, DVI, HDMI, USB 3
Form Factor: ATX
Special Features: Flash BIOS Button, Steel Armor PCI-E slots

Key Features

Supports 1st, 2nd and 3rd Gen AMD Ryzen/ Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon graphics/ Athlon with Radeon Vega Graphics desktop processors for Socket AM4

Supports DDR4 Memory, up to 4133(OC) MHz

Turbo M.2: running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDs

Flash BIOS button: Simply use a USB key to flash any bios within seconds, without installing a CPU, Memory or graphics card

Multi-gpu: With Steel Armor PCI-E slots. Supports 2-Way AMD Crossfire

Specifications

Chipset

B450

Socket

AMD AM4

Processor Support

1st, 2nd and 3rd Gen AMD Ryzen/ Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon graphics/ Athlon with Radeon Vega Graphics desktop processors

Memory Support

DDR4 Memory, up to 4133(OC) MHz

M.2 Slot

Turbo M.2 (PCI-E Gen3 x4 for NVMe SSDs)

BIOS Feature

Flash BIOS button

Multi-GPU Support

2-Way AMD Crossfire (with Steel Armor PCI-E slots)

Form Factor

ATX

Frequently Asked Questions

Which generations of AMD Ryzen processors does the MSI B450APROMAX motherboard support?

This motherboard supports 1st, 2nd, and 3rd Gen AMD Ryzen processors, including those with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon graphics, as well as Athlon with Radeon Vega Graphics desktop processors for Socket AM4.

What is the maximum memory speed supported by this motherboard?

The MSI B450APROMAX supports DDR4 Memory up to an overclocked speed of 4133(OC) MHz.

Can I update the BIOS without a CPU installed on this motherboard?

Yes, this motherboard features a Flash BIOS button, allowing you to update the BIOS using a USB key within seconds, even without a CPU, memory, or graphics card installed.

What kind of storage performance can I expect with an M.2 SSD?

The motherboard includes Turbo M.2, which operates at PCI-E Gen3 x4, maximizing performance for NVMe-based SSDs.

Does this motherboard support multiple graphics cards?

Yes, it supports 2-Way AMD Crossfire with Steel Armor PCI-E slots, allowing for multi-GPU configurations.

Strengths & Trade-offs

👍 Pros

Supports a wide range of AMD Ryzen processors, including 1st, 2nd, and 3rd Gen, offering flexible CPU upgrade paths.
Compatible with DDR4 Memory up to an overclocked speed of 4133 MHz, allowing for high-performance system builds.
Features Turbo M.2, which runs at PCI-E Gen3 x4, maximizing performance for NVMe-based SSDs.
Equipped with a Flash BIOS button, enabling easy BIOS updates within seconds without requiring a CPU, memory, or graphics card.
Supports 2-Way AMD Crossfire with Steel Armor PCI-E slots, ideal for multi-GPU configurations for enhanced graphics performance.

👎 Cons

Only supports AMD Crossfire for multi-GPU setups, lacking support for NVIDIA SLI.
The memory overclocking speed of 4133(OC) MHz requires compatible RAM and proper configuration, which might be complex for new builders.
While supporting up to 3rd Gen Ryzen, it does not mention compatibility with newer generations of AMD processors (e.g., 5000 series).
The B450 chipset, while capable, is an older generation compared to B550 or X570, potentially lacking some newer features.
Specifics on the number of USB ports or advanced audio codecs are not provided, which could be relevant for peripheral connectivity and sound quality.